Improvement in paper-files



Leners prima No. 92,925, zml .my zo, 1869.

IMPROVEMENT IN PAPER-FILES.

The Schedule referred to in than Letters Patent and making part ot the same.

v-O-w* To all whom it may conce-rn:

Be it known that 1,1. W. DERIIAM, of the city of Brooklyn, in the county of Kings, and State oi New York, have invented a new and useful improvement, being a Bankers lli.@ady-Rei'creiice File; and I do hereby declare the ihllowing to be a i'ulhxclcar, and exact description thereof, reference heingrhad to the accompanying ch'awiugs 'of the Sallie, making part oi this speoiiication, and in which- Figure 1 represents a view in perspective of a bankers file'opened so asl to expose the intermediate guardstrips and the strengtliening-ligatm'e of the leaves;

Figure 2 represents a transverse section of the iile, showing two ot' the leaves therein strengthened and secured to the back of the file; and

Figure 3 represents a view in perspective of two of the leaves detached from the file withtheintermediate gua-rds or holders removed, to show more fully the ligature of muslin and paper by which the leaves are united together in pairs and to the file, and made stiii` v and iirin throughout their length.

A hook or i'ile for the safe keeping oi', and easy reference to notes, drafts, bills oi' exchange, and other valuable papers for the daily use of banks, is not new, but such lilcs heretofore made, have been more or less defective, and have not possessed such utility and durability as are required in the daily rout-ine ofthe business of a bank. h t i in the iiles for this purpose heretoiore inuse, the binding is so wea-k, that ina' short time oiconstant use, the leaves will break in the centre, or'hI i me loose at the ends, and render the lille' useless. I l

Reference-[iles have also been made oi` leav'es oi` glazed muslin, stiii'ened by a paper back oi' equal .size pasted to it, and sewed to the back of thebook in such manner that the inuslin leaf extends over the joint of the leaves to permit 'it to be sewed to the hack of' the book. i

This extension of the muslin leaf over tlhe joint of the le, and uponthe adjacent leaf, serves no useful purpose whatever,'but renders the file clumsy.

llfiorcover, the muslin lcaicauses the entire leaf to blister or pucker, and become irregular on its surface, whereas a smooth surface in a hank-iile is indispensable.

yln this tile, also, the extension ofthe inuslin leaf over the joint, crowds the intermediate guards too much together, renders them clumsy of access, ai d makes it necessary to secure the muslin leaves au the intermediate guards to the back of the le by Separate threads, tlmsincreasing its cost, and rat-lic" interrupting the utility of the guards than otherwiser f i i A inuslin tic or strip to connect the, leaves separately to the back oi' the hook by sewing, is also old;

but this method neither gives `rigidity or permanence to the leaves, and the result is, the leaves soon becomeabby andvwear loose, as is often seenliu the use of albums, each stiff leaf of which is connected hya muslin strip, sewed to the -halck of the cover.

My improvements are designed to remedy these defeets', and t0 produce a bank reference-lilo, which will be cheap, durable, and handled with facility; and

It consists in uniting the leaves of the file together, and to the tile, by a ligature of muslin stifieued and strengthened by a paper hack which covers the ligature, and in securing the flca'ves to the file by pasting and stitching the stiiicnlngdigatm'e to the ordinary musln hack, thus imparting a solidity and permanency to the leaves which it is impossible to obtain by the muslin alone, or by thc muslin-backed leaf stitched to and overlapping the joint of the iile.

` 'lhe employment of this stiifeued ligature B, also serves as a iirm seat to secure the inlermediateguards 01 holders Aby the same threads which secure the leaves E, and thus allow them to be easily opened.

The bracing and connectingdigature B is .composed of a strip of muslin a, and a stiip of' stout brown paper, c, of equal size, and these are pasted together, so that one side is a cotton hack, and the other a paper hack.

It is pasted to the lower edges'of the leaves by the cotton hack, -so as to leave a space, e, between the parallel edges of said leaves, as shown in figs. 2 and 3, which forms the hinge of the leaves, and by which they are also pasted and sewcd to the common muslin back i, as shown in iig. 2.

A muslin hack cannot be scoured by pasto'as well as stitching, because. the paste would he absorbed by the cotton, and theleaves would stick together irregularly, while the paper alone would soon tear out of the stitching.. Blit'thc stitl'ened ligature B forms a durable hinge, and braces the leaves together in pairs, so that the stiffness of one adds to that of the other.

The bracing-ligature also embracesl either side of the nest of guards or holders A, when the file is closed, and thus stitieus them as well as the loaves'.

Thepapercovering o, ofthe ligature, on the inside, also gives a neat finish to each leaf, and the stitching n, shown in iig. 3, will hold the leaves and guards perfectly secure.

The'file or book is about nine inches long and about iive and one-quarter'inches wide, and the leaves E are of an extra quality of very thick brown paper, the edges of .which are out, as shown at l), so as to he numbered from 1` to 31, inclusive, corresponding to the days of the month.'

The guards orholders A are secured between each pair of leaves E, and consist of a number; of narrow strips of paper extending the length of the'book, and secured thereto by the same threads n, which secure the leaves.

Notes, bills, and drafts maturing, are placed between the 1eaves,; opened face upwards, corresponding to the 'day ofthe month on which they are due, and the guards between -the 'leaves serve to hold the contents of' the, le in their proper places.

One of these les suices for all the maturing paper of the largest banking-establishment for a month, and a set of twelve for a year. They may be use'l again and again, audit is believed that a single set of these les will last au ordinary banking-house at least ten years. l

A wide elastic band, C, is fastened to the cover of'` the file, near` its outer edge, by which it will be kept closely and eiectually shut, and secures the contents from danger of falling out.

Having thus described'my improvements,

I claim- The combination, in a bankes le, of the' leaves E, 'made of stili" brown paper, cut and numbered from one to thirtyone; the intermediate guards or strips A, with thestiieued ligatures B, and the elastic band O, the whole arranged and made as described, and forming a bankers tile, in which may b e arranged and secured' all the'notes, bills, Ste., maturing during the P. WV. DERHAM.

month.

Witnesses:

HENRY E. Hrecrn'son, W. Tr'rUs. 

